* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        
        body {
            background-color: #f5f5f5;
            color: #333;
        }
        
        .header {
            background-color: #2a7fff;
            padding: 15px 20px;
            text-align: center;
            color: white;
            position: sticky;
            top: 0;
            z-index: 100;
        }
        
        .header h1 {
            font-size: 20px;
            font-weight: bold;
        }
        
        .search-container {
            display: flex;
            padding: 10px 20px;
            background-color: white;
            border-bottom: 1px solid #ddd;
            align-items: center;
        }
        
        .search-input {
            flex: 1;
            padding: 10px 15px;
            border: 1px solid #ddd;
            border-radius: 20px;
            font-size: 18px;
            outline: none;
            height: 42px;
        }
        
        .search-button {
            padding: 10px 20px;
            background-color: #e0e0e0;
            border: none;
            border-radius: 20px;
            margin-left: 10px;
            font-size: 18px;
            cursor: pointer;
            height: 42px;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        
        .user-button {
            padding: 10px 15px;
            background-color: #2a7fff;
            color: white;
            border: none;
            border-radius: 20px;
            margin-left: 10px;
            font-size: 18px;
            cursor: pointer;
            display: flex;
            align-items: center;
            gap: 5px;
            height: 42px;
            font-weight: bold;
            box-shadow: 0 2px 4px rgba(42, 127, 255, 0.3);
        }
        
        .user-avatar {
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background-color: #f0f0f0;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: bold;
        }
        
        .tabs {
            display: flex;
            overflow-x: auto;
            background-color: white;
            padding: 10px 0;
            border-bottom: 1px solid #ddd;
            white-space: nowrap;
        }
        
        .tab {
            padding: 12px 20px;
            font-size: 16px;
            cursor: pointer;
            margin: 0 5px;
            border-radius: 5px;
            transition: all 0.3s;
            white-space: nowrap;
        }
        
        .tab.active {
            color: #ff4d4d;
            border-bottom: 2px solid #ff4d4d;
            font-weight: bold;
        }
        
        .content {
            padding: 0px;
            margin-top: 10px;
        }
        
        .article-card {
            background-color: white;
            border-radius: 0;
            padding: 15px;
            margin-top: 10px;
            box-shadow: none;
            display: flex;
            gap: 15px;
            align-items: flex-start;
            width: 100%;
            box-sizing: border-box;
            border-bottom: 1px solid #eee;
        }
        
        .article-card:last-child {
            border-bottom: none;
        }
        
        .article-image {
            width: 100px;
            height: 80px;
            object-fit: cover;
            border-radius: 8px;
            flex-shrink: 0;
        }
        
        .article-content {
            flex: 1;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }
        
        .article-title {
            font-size: 18px;
            line-height: 1.4;
            margin-bottom: 5px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        
        .article-meta {
            display: flex;
            justify-content: flex-end;
            font-size: 14px;
            color: #888;
            gap: 8px;
        }
        
        .meta-item {
            white-space: nowrap;
        }
        
        .close-button {
            background: none;
            border: none;
            font-size: 16px;
            cursor: pointer;
            color: #888;
            margin-left: 5px;
        }
        
        /* 分类区块样式 */
        .category-section {
            margin-bottom: 25px;
        }
        
        .category-title {
            font-size: 20px;
            font-weight: bold;
            margin-bottom: 15px;
            color: #2a7fff;
            padding-bottom: 5px;
            border-bottom: 2px solid #2a7fff;
        }
        
        /* 用户菜单弹出层 */
        .user-menu {
            position: absolute;
            top: 65px;
            right: 20px;
            background-color: white;
            border-radius: 8px;
            box-shadow: 0 4px 12px rgba(0,0,0,0.15);
            z-index: 1000;
            width: 200px;
            display: none;
        }
        
        .user-menu.active {
            display: block;
        }
        
        .user-info {
            padding: 15px;
            border-bottom: 1px solid #eee;
        }
        
        .user-name {
            font-weight: bold;
            margin-bottom: 5px;
            font-size: 16px;
        }
        
        .user-email {
            font-size: 16px;
            color: #666;
        }
        
        .menu-items {
            list-style: none;
        }
        
        .menu-items li {
            padding: 12px 15px;
            cursor: pointer;
            font-size: 16px;
            transition: background-color 0.2s;
        }
        
        .menu-items li:hover {
            background-color: #f5f5f5;
        }
        
        .menu-items li:last-child {
            color: #ff4d4d;
            border-top: 1px solid #eee;
        }
        
        /* 分页控件样式 */
        .pagination {
            display: flex;
            justify-content: center;
            align-items: center;
            padding: 10px 20px;
            gap: 10px;
            background-color: white;
            border-bottom: 1px solid #ddd;
            margin: 0;
            width: 100%;
            max-width: 100%;
            overflow-x: auto;
            white-space: nowrap;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 999;
            box-shadow: 0 -2px 4px rgba(0,0,0,0.1);
        }
        
        .page-btn {
            padding: 10px 16px;
            background-color: white;
            border: 1px solid #e0e0e0;
            border-radius: 6px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 500;
            transition: all 0.2s ease;
            color: #666;
        }
        
        .page-btn:hover:not(.disabled) {
            background-color: #f8f9fa;
            border-color: #2a7fff;
            color: #2a7fff;
            transform: translateY(-1px);
            box-shadow: 0 2px 4px rgba(42, 127, 255, 0.1);
        }
        
        .page-btn.active {
            background-color: #2a7fff;
            color: white;
            border-color: #2a7fff;
            box-shadow: 0 2px 4px rgba(42, 127, 255, 0.2);
        }
        
        .page-btn.disabled {
            background-color: #f5f5f5;
            color: #ccc;
            cursor: not-allowed;
            border-color: #e0e0e0;
        }
        
        /* 文章卡片点击效果 */
        .article-card {
            cursor: pointer;
            transition: all 0.2s ease;
        }
        
        .article-card:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(0,0,0,0.15);
        }
        
        /* 文章标题链接样式 */
        .title-link {
            color: #333;
            text-decoration: none;
            display: block;
            transition: color 0.2s ease;
        }
        
        .title-link:hover {
            color: #2a7fff;
            text-decoration: none;
        }
        
        /* 下拉刷新提示样式 */
        .refresh-hint {
            background-color: #2a7fff;
            color: white;
            text-align: center;
            padding: 10px;
            font-size: 16px;
            font-weight: bold;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 9999;
        }
        
        @media (max-width: 480px) {
            .header h1 {
                font-size: 22px;
            }
            
            .search-input {
                font-size: 16px;
                padding: 8px 12px;
                height: 36px;
            }
            
            .search-button {
                font-size: 14px;
                padding: 8px 12px;
                margin-left: 5px;
                height: 36px;
                display: flex;
                align-items: center;
                justify-content: center;
            }
            
            .user-button {
                font-size: 14px;
                padding: 8px 12px;
                margin-left: 5px;
                height: 36px;
                font-weight: bold;
                box-shadow: 0 2px 4px rgba(42, 127, 255, 0.3);
            }
            
            .user-avatar {
                font-size: 16px;
            }
            
            .article-title {
                font-size: 20px;
            }
            
            .article-meta {
                font-size: 16px;
            }
            
            .category-title {
                font-size: 22px;
            }
            
            .user-name {
                font-size: 18px;
            }
            
            .user-email {
                font-size: 18px;
            }
            
            .menu-items li {
                font-size: 18px;
            }
            
            .page-btn {
                font-size: 18px;
            }
            
            .tab {
                font-size: 18px;
            }
            
            .refresh-hint {
                font-size: 18px;
            }
            
            .article-image {
                width: 80px;
                height: 60px;
            }
            
            /* 移动端分页样式 */
            .page-btn {
                padding: 6px 12px;
                font-size: 12px;
            }
        }